Communication—Lithium Sulfonated Polyoxadiazole as a Novel Single-Ion Polymer Electrolyte in Lithium-Ion Batteries

Gao, Haijun; Mao, Jianzhao; Li, Dazhe; Yu, Yuanyuan; Yang, Chen; Qi, Shikai; Liu, Qianli; Zhu, Jiadeng; Jiang, Mengjin

doi:10.1149/1945-7111/ab6e5c

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…[ 11–15 ] Among various solid‐state electrolytes (SSEs), many efforts have been devoted to solid polymer electrolytes (SPEs), which possess numerous attractive properties, including high flexibility, processability, and shape versatility, as well as low density. [ 16–26 ] These unique properties may enable them to meet large‐scale electronic devices’ requirements. Comparing with well‐studied lithium salt doped polymers, typically poly(ethylene oxide) (PEO), pioneered by Wright and co‐workers in 1973, single‐ion conducting polymer electrolytes (SICPEs), ideally defined as polymer electrolytes with cationic transference number close to unity ( t Li + ≈ 1), are a more advantageous system.…”

Section: Introductionmentioning

confidence: 99%

Single‐Ion Conducting Polymer Electrolytes for Solid‐State Lithium–Metal Batteries: Design, Performance, and Challenges

Zhu

Zhang

Zhao

et al. 2021

Advanced Energy Materials

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Realizing solid‐state lithium batteries with higher energy density and enhanced safety compared to the conventional liquid lithium‐ion batteries is one of the primary research and development goals set for next‐generation batteries in this decade. In this regard, polymer electrolytes have been widely researched as solid electrolytes due to their excellent processability, flexibility, and low weight. With high cationic transference numbers (tLi+ close to 1), single‐ion conducting polymer electrolytes (SICPEs) have tremendous advantages compared to polymer electrolyte systems (tLi+ < 0.4) because of their potential to reduce the buildup of ion concentration gradients and suppress growth of lithium dendrites. The current review covers the fundamentals of SICPEs, including anionic unit synthesis, polymer structure design, and film fabrication, along with simulation and experimental results in solid‐state lithium–metal battery applications. A perspective on current challenges, possible solutions, and potential research directions of SICPEs is also discussed to provide the research community with the critical technical aspects that may advance SICPEs as solid electrolytes in next‐generation energy storage systems.

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Section: Introductionmentioning

confidence: 99%

Single‐Ion Conducting Polymer Electrolytes for Solid‐State Lithium–Metal Batteries: Design, Performance, and Challenges

Zhu

Zhang

Zhao

et al. 2021

Advanced Energy Materials

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280

230

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“…Because lithium sulfonate has a lower dissociation energy than lithium carboxylate, the anionic sulfonic groups favor the dissociation of Li + , which may enhance the conductivity of SPEs. Therefore, various sulfonated polymers have been used to prepare SIPEs. − In particular, PVDF and poly(vinylidene fluoride- co -hexafluoropropylene) (PVDF-HFP) have attracted significant attention because their fluorinated alkyl groups favor the dissociation of Li + . − …”

Section: Introductionmentioning

confidence: 99%

PVDF-HFP-Based Composite Electrolyte Membranes having High Conductivity and Lithium-Ion Transference Number for Lithium Metal Batteries

Liu

Lin

et al. 2021

ACS Appl. Energy Mater.

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Lithium metal batteries (LMBs) with liquid-based electrolytes usually suffer from safety problems such as the growth of Li dendrites and the leakage and volatilization of organic solvents. Replacing liquid-based electrolytes using solid polymer electrolytes may resolve these problems. In this study, sulfonated polyvinylidene fluoride lithium-hexafluoropropylene (SPVDFLi-HFP), a single-ion conductive polymer, is synthesized from polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) and chlorosulfonic acid, and a series of LMBs are fabricated using SPVDFLi-HFPx/PVDF-HFP composite electrolyte membranes and characterized. The as-prepared SPVDFLi-HFPx/PVDF-HFP composite electrolyte membranes possess high conductivity (2.84 × 10 −4 S cm −1 ), a wide electrochemical window (5.4 V, vs Li/Li + ), and high interface compatibility with lithium metal anodes. Benefiting from the single-ion conductive nature of SPVDFLi-HFP, SPVDFLi-HFP50/PVDF-HFP exhibits a high lithium-ion transference number of 0.81. A solid-state LiFePO 4 |SPVDFLi-HFP50/ PVDF-HFP|Li battery exhibits an initial capacity of 147.9 mA h g −1 , a capacity retention of 89.1% at the end of 200 cycles, and an average Coulombic efficiency exceeding 99% at 0.2 C, demonstrating strong application potential in LMBs.

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Polymeric Materials for Metal-Sulfur Batteries

Zhu

Zhou

Gao

et al. 2023

Green Energy and Technology

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Communication—Lithium Sulfonated Polyoxadiazole as a Novel Single-Ion Polymer Electrolyte in Lithium-Ion Batteries

Cited by 6 publications

References 28 publications

Single‐Ion Conducting Polymer Electrolytes for Solid‐State Lithium–Metal Batteries: Design, Performance, and Challenges

Single‐Ion Conducting Polymer Electrolytes for Solid‐State Lithium–Metal Batteries: Design, Performance, and Challenges

PVDF-HFP-Based Composite Electrolyte Membranes having High Conductivity and Lithium-Ion Transference Number for Lithium Metal Batteries

Polymeric Materials for Metal-Sulfur Batteries

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